NOTE : Increase in intensity means increase in the number of photons or constituent particles. But increase in frequency means increase in the energy possessed by these particles. In the case of visible light, increase in intensity is seen as increase in brightness. Increase in frequency, is seen as a change in color. Note that, when the intensity of the incident radiation is increased, the energy of the photoelectrons emitted does not increase.
How an Auto-dimming mirror works. An auto-dimming mirror is comprised of two pieces of glass that are sealed together along the edges and then metal contact strips attached: An electronic circuit board is attached to the rear of the mirror with wire leads soldered to the edges of the glass:
A rear-view mirror is a mirror in automobiles and other vehicles, designed to allow the driver to see rearward through the vehicle's rear window (rear windshield).